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dc.contributorGhanem, Michel Edmonden_US
dc.contributorSiddique, Kadambot H Men_US
dc.creatorChen, Yinglongen_US
dc.identifier.citationYinglong Chen, Michel Edmond Ghanem, Kadambot H M Siddique. (1/4/2017). Characterising root trait variability in chickpea (Cicer arietinum L. ) germplasm. Journal of Experimental Botany, 68 (8), pp. 1987-1999.en_US
dc.description.abstractChickpea (Cicer arietinum L.) is an important grain legume crop but its sustainable production is challenged by predicted climate changes, which are likely to increase production limitations and uncertainty in yields. Characterising the variability in root architectural traits in a core collection of chickpea germplasm will provide the basis for breeding new germplasm with suitable root traits for the efficient acquisition of soil resources and adaptation to drought and other abiotic stresses. This study used a semi-hydroponic phenotyping system for assessing root trait variability across 270 chickpea genotypes. The genotypes exhibited large variation in rooting patterns and branching manner. Thirty root-related traits were characterised, 17 of which had coefficients of variation ≥0.3 among genotypes and were selected for further examination. The Pearson correlation matrix showed a strong correlation among most of the selected traits (P≤0.05). Principal component analysis revealed three principal components with eigenvalues >1 capturing 81.5% of the total variation. An agglomerative hierarchical clustering analysis, based on root trait variation, identified three genotype homogeneous groups (rescaled distance of 15) and 16 sub-groups (rescaled distance of 5). The chickpea genotypes characterised in this study with vastly different root properties could be used for further studies in glasshouses and field trials, and for molecular marker studies, gene mapping, and modelling simulations, ultimately aimed at breeding germplasm with root traits for improved adaptation to drought and other specific environments.en_US
dc.publisherOxford University Press (OUP): Policy B - Oxford Open Option Aen_US
dc.sourceJournal of Experimental Botany;68,(2016) Pagination 1987-1999en_US
dc.subjectcrop phenotypingen_US
dc.subjectroot trait variabilityen_US
dc.titleCharacterising root trait variability in chickpea (Cicer arietinum L.) germplasmen_US
dc.typeJournal Articleen_US
cg.creator.idGhanem, Michel Edmond: 0000-0003-0626-7622en_US
cg.subject.agrovoccicer arietinumen_US
cg.subject.agrovocroot system architectureen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerThe University of Western Australia - UWAen_US
cg.contributor.crpCGIAR Research Program on Grain Legumes - GLen_US
cg.contributor.funderArab Fund for Economic and Social Development - AFESDen_US
cg.contributor.projectSustainability and Operation of the Regional Research Centers in a Number of Arab Countries (Phase II)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionSouthern Asiaen_US
cg.isijournalISI Journalen_US
dc.identifier.statusOpen accessen_US
cg.journalJournal of Experimental Botanyen_US

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